398720760 has 64 divisors (see below), whose sum is σ = 1234759680. Its totient is φ = 102894720.

The previous prime is 398720753. The next prime is 398720767. The reversal of 398720760 is 67027893.

398720760 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (398720753) and next prime (398720767).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398720767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49872 + ... + 57311.

It is an arithmetic number, because the mean of its divisors is an integer number (19293120).

Almost surely, 2^398720760 is an apocalyptic number.

398720760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

398720760 is an abundant number, since it is smaller than the sum of its proper divisors (836038920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398720760 is a wasteful number, since it uses less digits than its factorization.

398720760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107228 (or 107224 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 398720760 is about 19967.9933894220. The cubic root of 398720760 is about 736.0200008349.

The spelling of 398720760 in words is "three hundred ninety-eight million, seven hundred twenty thousand, seven hundred sixty".